Improved pipe and bolt-gutter



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c o. PARSONS, OF BOSTON, MASSACHUSETTS. L tter? Patent 1V0. 69,473,1Lefiv1 Oclelmr l, 1867; underline-,7 S'Qtcmlmr 19, 1867,

IMPRoVED PIPE AND BOLT-CUTTER.

TO ALL WHOM Irv M Y eonoeam Be it known that-I, 0, 0. PARSONS, of Boston, in the county of Suffolk, and State of Massachusetts, have invented an Improved-Pipe and Bolt-Gutter; and I do hereby declare that the following, taken in connection with thedrawings which accompany and form part of this specification, is a description of my invention sufficient toenable those skilled in the art to practise it. 4 i

The invention relates to the construction of tools for cutting gas pipe, round bolt-5,01 rods, &c.; and consists in employing'in the cutter stock two rotary disk-cutters working in cenjunct-ion,' each of which-has an angular cutting edge, the inclination of the two being opposite, and the cutting edge beingupon the outer side or face of each, V v I I 4 A, in the drawing, represents the invention embodied in a, steel: to be zippliedto a slide-restin a lathe. B

is a side view, and C an end view of the same. I t e a donotc's thcstock; blathe rotary disk-eutters, each-being mounted and turning loosely on apin, c, extend- :ingthrough the stock. The stock is to be applied to the slidcrcst ill the lathe and pressed-up towards-the pipe {or belt which rotates in the lathe, and so as to bring the cutters into contact with the surface thereof in the plane where the cut is to be made, the pipe orboltbeing brought equally or centrally against both cutters. The cutting edges of the two cutters will then operate onvthe surface of the pipe or bolt at. a distance apart equal to the distance between the planes of said cutting edges, and as they are fed in, and the'pipc or bolt is rotated, they will cut out the metal and sever the pipe or bolt.- It will be observed that their action is not to merelydisplace'the' metal, throwingit up upon the surface of the pipe as burrs, which burrs have subsequently o be reduced by cutting or filing them down, but that theyv out awaythe metal entirely, any burrs thrown up being carried into the cut-away portion, leaving the ends of the pipe smooth and of their normal diameter.

When the pipe is held stationary the cutters maybe applied to a slide moving in a block havingareccss for receiving the pipe to bc cut, the block being fed by a scrcw handle n p-against the pipe, which rests on one side of the recess, While the block is swung round the pipe by the handle in much the same way as the rotarywheel pipe-cutter new in use is constructed and used. i

In the use of the common rotary-disk pipe-cutter, having a A-shaped cutting periphery,- much (lifiiculty is experienced on account o'f the necessity of reducing the burrsiturned up by the cutter, and from the fact that the cutting edge soon becomes dulled. These difficulties, however, are wholly surmounted by rny construction, which makes a clean, smooth out, without leaving burrs,'the material being chippcdaway by the action ofmthe cutters, and the cutters keeping in good condition for a great length of time. .The cutting ed ge of each disk is preferably on an angleofi aboi1tforty-firc degrees, but this may be somewhat varied.

I claim a pipe or bolt-cutter having two rotary disk-cutters, arranged to operate substantiallyas set forth.-

0. e. masons.

Witnesses:

\ F. Gourm,

L. H. Lari-Mun. 

